Lasko Ceramic Tower
It rotates on its base and has a wide reach to give corner-to-corner coverage. Sturdy, solid, and unobtrusive, it occupies only an 8½-inch diameter of floor space. One caveat: The digital buttons make a loud noise when you press them. Remote included; maintains a consistent temperature to save energy. Height: 21 inches.
To buy: Unfortunately, this item is no longer available. A new model can be found here.